High-speed transmission.



E. S. BENNETT. HIGH SPEED TRANSMISSION. APPLIQATION FILED NOV. 8. 191a.

Patented Feb. 4, 1919.

,[nvezzior jrasius J. BE/ZTZQZ'Z' vqiiormgsys.

ms'fos s.- EENNE'rr, OF NEW YORK, N. Y.

HflIGH-SPEED TRANSMISSION.-

Specification of Letters Patent.

Application filed November. 8, 1916. Serial No.- 130,250;

To all whom it may concern:

Be it known that I, ERASTUS S. BENNETT, a citizen of the United States, and resident of New York, N. Y., have invented certain new and useful Improvements in High- Speed Transmission, of which the following is a specification.

The object of the present invention is to provide means for the transmission of high rotative velocities, whether for reduction of the speed or otherwise.

The invention consists in the features and combination and arrangement of parts hereinafter described and particularly pointed out in the claim.

In the accompanying drawings;

Figure 1 is a side view in the nature of a diagram of the speed transmission system,

and,

Fig. 2 'is a sectional view of the larger member of the two rotative members shown in Fig. 1, part of the smaller member being shown in elevation for-convenience of illustration.

The apparatus comprises a shaft A carrying an electro-magnetic body D connected to the shaft by a key B, the said shaft being mounted to turn in suitable bearings.

The electro-magnetic coil is indicated at E, this being wound aroundthe periphery of the rotative body D, which body is provided with a circumferential chamber or space in which the magnet coil is located or wound. The poles of the magnet D are indicated at F and on the faces of these poles ribs G, G are formed. The electro-magnetic coil E is inclosed in the chamber of the body D by the walls thereof and by an inserted wall H of insulating material which extends from wall to wall of the chamber of the rotative body D.- This body is rotative within a chamber M which is water-tight 1 and contains besides the magnetic body D a second body K mounted on a shaft J suitably journaled in bearings outside of the casing. The casing contains also a body of water, oil or'other fluid indicated at I and into this body of fluid the lower portion of the rotative body D extends. The smaller rotative body K has grooves L extending about the same peripherally which receive the ribs G extending around the periphery of the larger body D. At N contact rings are shown connecting with a suitable source of electric current and from these rings wires 0, O extend to the coil E, for energizhowever,

ing the same and magnetizing the body D. The smaller body K is not magnetized but it is made of highly permeable or magnetizable metal. The magnet D is magnetized toa point closely approaching saturation. The ribs on the magnet D are arranged to just contact with .the bottom of the grooves L of the smaller body K, while the ribs on the smaller body just fall short of actual contacting with the bottoms of the grooves on the magnetic body D. The ribs of the larger magnetic body fit into the grooves of the smaller body K with a slight clearance which should not exceed .001 or only sufiicient to enable the two bodies to run without actual contact between the sides of the ribs. This construction leaves a very slight air gap on the outer end-of the ribs of the smaller rotative body K and on all sides of all the ribs, the only actual contact between the two rotative bodies being at the surface of the ribs G, which surfaces contact with the bottoms of the grooves L in the smaller rotative body. Along this line of actual metallic contact there will be of course a concentration of the magnetic lines of force. A similar concentration of lines of force takes place at each corner or angle and also at the point where the breaking away efi'ect takes place between the magnetic body and the smaller body or keeper K. There is, the sllght gap between the outer ends of the ribs of the smaller body K and the bottoms of the grooves of the magnetized body D and also between all the sides of all the ribs. To this gap I supply a fluid as oil or water. This is indicated at R in Fig. 1, it being of course supplied from the body of fluid at I, which is taken up by the rotative magnetic bodv D and carried to the point indicated.

, It will be observed that by the two rotative bodies, one of which is magnetized and the other is in the nature of a rotative keeper, a transmission system is .provided under the construction and arrangement described without the use of chains or other friction generating devices, and without noise or wear, although the apparatus is designed for the transmission ofv very hlgh speed. The insulation at H prevents the water or oil from reaching the electro-magnetic coil.

The shaft of the body K may be connected and driven by a high speed rotary en no.

It will be noted that my casing, whlch in- Patented Feb. 4, 1919';

gearing, belts,

' provided on opposite closes the rotative members, is especially designed to insure the accumulation of fluid and the maintenance of this fluid at the point where the rotative bodies substantially meet. This casing conforms to the, upper curved parts of the rotative body and has an inwardly extending portion directed to the point where the two rotative bodies come together, so that-the oil or water which is taken up by the rotatable body D and is thrown off by centrifugal force will strike the casing and thereby will be directed to the meeting point of the two rotative bodies.

I claim as my mvention:

In combination ,a magnetized rotative body of a single piece having a channel in its face, with an electric coil therein and sides of said channel with peripheral ribs and grooves substantially rectangular in cross-section, a second rotative body having grooves and ribs matching those of the magetized body, the said ribs of the magnetized body running in contact with the bottoms of the grooves of the second rotative body and there being a small space between the sides of the inter meshed ribs of the two bodies, suflicient only for clearance and a casing containing fluid and having a portion overhanging the rotative bodies and directed to the meeting point between them to cause the fluid picked up by the rotative bodies to be discharged to sa1d meeting point of the two bodies, substantially as described.

ERASTUS S. BENNETT. 

